body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #3494E6, #EC6EAD) fixed;
    color: #fff;
}

.app-container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    color: #333;
}

input {
    margin: 10px 0;
    padding: 10px;
    border: none;
    border-radius: 4px;
}

button, a {
    display: inline-block;
    padding: 10px 20px;
    margin: 10px 5px;
    background-color: #4CAF50;
    color: #fff;
    text-decoration: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover, a:hover {
    background-color: #45a049;
}

video {
    width: 100%;
    margin-top: 20px;
    border-radius: 4px;
}